ICAO		IATA		Other		Location
				CO23		Longmont [Ashlawn Airport], Colorado, US (43 mi / 69 km S)
				WY45		Hillsdale [Michael Skypark Airport], Wyoming, US (43 mi / 69 km NE)
				7CO0		Erie [Parkland Airport], Colorado, US (44 mi / 70 km S)
				18V		Hudson [Platte Valley Airpark], Colorado, US (44 mi / 71 km S)
				ROMO		Rocky Mountain National Park [Rocky Mountain NP], Colorado, US (45 mi / 73 km SW)
				24CO		Boulder [Building 910 Heliport], Colorado, US (45 mi / 73 km S)
				0CO1		Louisville [Dave's Airport], Colorado, US (47 mi / 75 km S)
				CO09		Fort Lupton [Halliburton Office Heliport], Colorado, US (47 mi / 75 km S)
				CO82		Keenesburg [Land Airport], Colorado, US (47 mi / 76 km SE)
KBDU		WBU		BDU		Boulder [Muni], Colorado, US (47 mi / 76 km S)
KEIK				EIK		Erie [Muni], Colorado, US (48 mi / 77 km S)
				WY61		Laramie [ROCK & A Hard Place Ranch Airport], Wyoming, US (48 mi / 78 km NW)
				0CD7		Lafayette [Fox Hole Airport], Colorado, US (48 mi / 78 km S)
				CD00		Boulder [Emancipation Hill Heliport], Colorado, US (49 mi / 78 km SW)
				CO10		Boulder [Lemons Private Strip], Colorado, US (50 mi / 81 km S)
				0CD6		Lafayette [Exempla Good Samaritan Heliport], Colorado, US (51 mi / 82 km S)
				CO60		Keenesburg [Horseshoe Landings Airport], Colorado, US (51 mi / 82 km SE)
				WY40		Laramie [Ivinson Memorial Hospital Heliport], Wyoming, US (51 mi / 82 km NW)
				CO12		Brighton [Van Aire Airport], Colorado, US (52 mi / 84 km S)
				22CD		Brighton [Platte Valley Medical Center Heliport], Colorado, US (52 mi / 84 km S)